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Eupercaria/misc (Various families in series Eupercaria) >
Gerreidae (Mojarras)
Etymology: Gerres: Latin, gerres = a kind of anchovies; cited by Plinius; akazakii: Named for Dr. Masato Akazaki..
Environment: milieu / climate zone / depth range / distribution range
Sinh thái học
Biển; Thuộc về nước lợ gần đáy; Mức độ sâu 2 - 3 m (Ref. 58476). Subtropical
Northwest Pacific: likely to be endemic in Japan.
Bộ gần gũi / Khối lượng (Trọng lượng) / Age
Maturity: Lm ? range ? - ? cm
Max length : 16.9 cm SL con đực/không giới tính; (Ref. 58476)
Short description
Khóa để định loại | Hình thái học | Sinh trắc học
Các tia vây lưng cứng (tổng cộng) : 10; Các vây lưng mềm (tổng cộng) : 9; Tia cứng vây hậu môn: 3; Tia mềm vây hậu môn: 7.
Known to inhabit the vicinity of river mouth basins, which may be considered strongly related to a minimum winter sea temperature of 16°C (less than 100 m depth). Specimens were collected in inlet basins, river mouth basins, or on shallow sandy bottoms strongly affected by freshwater from nearby river mouths. However, this species rarely occurs in the shallow coastal area with almost no freshwater effect. One specimen (MUFS 9584, 135 mm SL, 3 July 1993), had a clearly matured or water-hardened (transparent) egg, giving an indication of the spawning season of the species (Ref. 58476).
Life cycle and mating behavior
Maturities | Sự tái sinh sản | Spawnings | Egg(s) | Fecundities | Ấu trùng
Iwatsuki, Y., S. Kimura and T. Yoshino, 2007. A review of the Gerres subfasciatus complex from the Indo-west Pacific, with three new species (Perciformes: Gerridae). Ichthyol. Res. 54(2):168-185. (Ref. 58476)
IUCN Red List Status (Ref. 130435)
Human uses
Các công cụ
Special reports
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Estimates based on models
Preferred temperature (Ref.
123201): 20.2 - 24.3, mean 21.6 °C (based on 90 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01413 (0.00602 - 0.03315), b=3.04 (2.86 - 3.22), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Mức dinh dưỡng (Ref.
69278): 3.3 ±0.3 se; based on size and trophs of closest relatives
Thích nghi nhanh (Ref.
120179): Chiêù cao, thời gian nhân đôi của chủng quần tối thiểu là dưới 15 tháng (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (11 of 100).
